HOpCreatePolyline
Functions
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int |
Detailed Description
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class HOpCreatePolyline : public HOpConstructPolyline
The HOpCreatePolyline class draws a polyline.
HOpCreatePolyline maps event information to the HOOPS routine HC_Insert_Polyline. This provides the basic functionality for dynamically creating a temporary overlayed polyline in the view plane based on pointer input. The polyline points are stored in a protected member array until a double click event is passed, then the array is inserted into the HOOPS database. The operation consists of the following steps:
Left Button Down: The operation is initiated and the first point of the polyline is recorded.
No Button Down and Drag: Rubberband line segment to the desired position of the next point.
Left Button Down: The next point in polyline is recorded and continues until the user double clicks the left mouse button.
Left Button Double Click: The polyline is finalized and the polyline primitive is flushed from the scene and a new one is inserted into the model.
Public Functions
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HOpCreatePolyline(HBaseView *view, int DoRepeat = 0, int DoCapture = 1)
Constructs an HOpCreatePolyline object.
- Parameters
view – A pointer to an HBaseView object.
DoRepeat – An integer denoting whether this is a repeatable operator. This parameter has been deprecated.
DoCapture – An integer denoting whether the mouse state should be captured, which means that all mouse events should be received after a mousedown, even if it leaves the window. This parameter has been deprecated.
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virtual ~HOpCreatePolyline()
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virtual HBaseOperator *Clone()
Creates a new operator which is a copy of the current operator. The user is responsible for deleting the newly created operator.
- Returns
A pointer to the newly created HOpCreatePolyline object.
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virtual char const *GetName()
- Returns
A pointer to a character string denoting the name of the operator, which is ‘HOpCreatePolyline’.
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virtual int OnLButtonDblClk(HEventInfo &hevent)
OnLButtonDblClk places the final mouse position into the temp array, then inserts the array into the database as a HOOPS polyline. This function also takes care of any cleanup.
- Parameters
hevent – An HEventInfo object containing information about the current event.
- Returns
An HOperatorReturn indicating the status of the event.
